Means for controlling the supply of liquid fuel to internal-combustion engines.



E. W. PETTER. MEANS FOR CONTROLLING THE SUPPLY OF LIQUID FUEL T0 INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 3. H6.

LAP Q Patented Jan. 1,1918.

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' APPLICATION FILED MAY 3. I915.

Paten td Jan. 1, 1918.

n u 5 w H, I I'll UNITED STATES PATENT. OFFICE.

ERNEST WILLOUGHIBY PE'ITER, .OF LONDON, ENGLAND.

MEANS FOR CONTROLLING THE SUPPLY OI LIQUID FUEL TO INTERNAL-COMBUSTIQN ENGINES.

Specification of Letters Patent.

Patented Jan. 1, 1918.

Application filed May 8, 1916. Serial No. 95,082.

To all whom it may concern:

Be it known that I, ERNns'r WILLOUGHBY lnrrnn, residing at 7 3 Queen Victoria street London, England, subject of the King of Great Britain and Ireland, have invented certain new and useful Improvements 1n Means for Controlling the Suppl of Liquid 'Fuel to Internal-"Combustion ngines, of which the following is a specification.

This invention relates to internal combustion engine using liquid fuel, and provides .a means of governing the amount of fuel delivered to the engine, and a means for adjusting the moment of injection of the fuel so as to make it earlier or later as required to suit the working conditions of the engine. 1 a

In order to obtain this result a shaft governor of'the usual type is fitted to the engine crank shaft or to some other shaft geared thereto. The governor consists of a member or casing upon which is formed an eccentric. On said eccentric is mounted a second or uter eccentric. On said outer eccentric is ounted a stra and connecting rod which operate the fuel injection pump.

This casin is carried u on a castin which- I will call the carrier, the said carrier being keyed to the engine crank shaft. The aforesaid casing is provided with a pair of symmetricall arranged weights, each of which is pivote to the casing at one end, being free to move around this pivot in a plane vertical to the shaft. The said outer eccentric isfitted to the casing in'such' a Way that the movement of the weights under the action.

of centrifugal force serves to increase or decrease the eccentrlcity of the said outer eccentric and by means of this variation in the eccentricity, the amount of fuel delivered to ;the engine is governed according to the workin load. r

The casing is fixed to the carrier by means of one or more studs screwed into the casing and passing through concentric slots in the carrier, these slots being of any desired length. By-rotating the casing to any desiredpositlon and locking it by tightening the nuts on the studs the inner eccentric on the shaft is rotatedso as to advance or retard the moment of fuel injection.

Figure 1 is an elevation of one form of vention Fig. 2 is a section;

Fig. 3 is an elevation; Fig. 4' a section showing the means of adjusting the position of the inner eccentric in relation to the casing and shaft.

Upon the shaft a is fitted a carrier comprising a pulley I; having a sleeve 0, the carrier being provided with concentric slots d d. On the sleeve 0 is disposed a casing 6 adapted to be adjusted angularly on the carrier and to be secured in position by the studs and nuts f f. Upon the casing e is formed an eccentric g which bear on the shaft a. On this eccentric is disposed the pum eccentric h. The eccentric h is provide with lugs jj. On the casing e are mounted weights In It lpivoted at m m. Links 14. n connect the weig ts k k to' the lugs j. The weights is k are held toward the shafi; a by means of springs o a which are attached to the casing at p. p and to the weights at 9. Upon the eccentric h is disposed the strap r to which the pump connecting rod .9 isattached. i

In operation as the speed increases the weights 'k k fiy'out and pull the eccentric it around eccentric g on the shaft (1 whereby the eccentricity is reduced and consequently the throw of the pump and the amount of fuel supplied to the combustion chamber. In order to alter the momentwhen the fuel is injected the casing e and with. it the inner eccentric g is moved in relation to the carrier which is keyed to the shaft.

What I claim and desire'to secure by Letters Patent is Means-for delivering fuel to internal com- 'bustion engines and for regulating the amount of fuel delivered comprising a reciprocating pump, means for actuating said um comprising a rotary shaft, a carrier e ed to t e said shaft, a member adjustab y mounted on said carrier, an eccentric on said member, means for adjusting said inner eccentric angularly in relation to the carrier for the purpose of adjusting the moment of injectlon of the fue1,-means for fixing the said member to the carrier, an outer eccentric mounted on the eccentric disosed on the said member, centrifugal means to the portion of said reciprocating pnmp,

said centrifugal means comprising weights pivotally mounted on said member and free to move in a plane vertical to the shaft, in on said outer eccentric, links connecting said lugs to said weights and springs adapted to keep the weight toward the sheft.

In witness whereof, I have hereunto si ed my name in the presence of two subscri ing wltnesses.

' ERNEST WILLOUGHBY PETTER.

Witnesses:

EL'LEN MAUDE SMITH, Roam MILTON SPEARPOINT. 

